Improvement in machines for making boxes



G. W. SWAN.

Machines for Making Buxes.

Patented August 26,1873.

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' GEORGE w. swAiv, OF SAN FRANCISCO, CALIFORNIA. w

IMPROVEMENT IN MACHINES FOR MAKING BOXES.

Specification forming part of Letters Patent No. 142,297, dated August26, 1873 application filed June 28, 1873.

To all whom it may concern Be it known that I, GEORGE W. SWAN, of SanFrancisco city and county, State of Galifornia, have invented a Machinefor Chanacross the sheets of thin wood or veneer which are used formaking boxes, these channels being so made that the material can befolded or bent at the angles, and at the same time strengthened by theshape which is given to the channels. This is done by the use of aseries of saws or cutters made adjustable upon a shaft, and a drumrevolving" near enough to the saws to hold the veneer at the properpoint to be channeled as it passes beneath the saws. Suitable beltscarry the veneer as it is fed, and the saws are set so as to form aV-shaped channel.

Referring to the accompanying drawing for a more complete explanation ofmy invention, Figure l is a plan or top view of my machine. Fig. 2 is alongitudinal section. Fig. 3 is an enlarged view, showing the manner inwhich the teeth are filed to make the V-shaped channels.

A is a frame, having a shaft or arbor, B, extending across its top, andturning in suitable journals. Between'these journals this arbor has ascrew-thread out upon it, so'that nuts 0 O can be used to secure thesaws D at any point upon the shaft, thus accommodating them to any sizeof box to be made. The saws are filed and set so that their highestpoint a will be in a line, while the cut will be made by the slopingsides 0 of the teeth, so that it will be V-shaped, as shown. This formof cut will just close up when the sides of the box are bent at rightangles to each other, andif any glue or cement be used, it is manifestthat the box will be very strong at these'corners.

In order to hold the veneers so that all the channels will be of theproper depth, and also to feed them into and out of the machine, Iemploy the drum E and the belt pulleys or rollers F, around which thebelts G pass, as shown. The drum E rotates in such a position withreference to the saws D that the latter will out almost through anythingwhich may pass over the drum. The pulleys F are so placed with referenceto the drum that the lower part of the belt will run over the uppersurface of the drum. The drum is caused to rotate by means of afriction-roller, H, which is mounted upon the main drivingshaft of themachine, and turns in contact with the drum. As the belts also lieclosely against the drum, it is manifest that its motion will also carrythe belts and their pulleys F.

In order to feed the stuff rapidly, I have a sliding table, I, with agage-board, J, which can be adjusted to suit any size of stuff that maybe used.

The veneers are stamped out into the proper size, and may be laid in apile upon a cover which extends over the saws and drum. From this pilethey can be drawn, one at a time, and laid upon the table I, restingagainst the gage-board J, when the table will be pushed forward untilthe belts G catch the veneer and carry it over the drum beneaththemselves. As the veneer passes beneath the saws, which have beenpreviously set for channeling the particular size when passing, it willhave the V-shaped channels made across it, and will thenpass through andfall upon the ground. A spring, K,

serves to retract the tablein readiness for another veneer as, soon asonelias left it and the table is released.

Any form of teethmay be used on the saws, and any thickness of saw-platemay be used; but I prefer to set my saws so as to make the V-shapedchannel, and the saw-plate may be made thicker, as the stuff to be usedis thicker.

In the place of saws, cutters may be used to make the channels, and onesaw may be large enough to out oif the stuff at the right length, agroove being made in the drum beneath it.

Having thus described my invention, what I claim, and desire to secureby Letters Pat-V 3. A machine for channeling veneers consistin g of theadjustable saws D, in combination with the drum E, the carrying-belts Gand pulleys F, and feeding-table I, substantially as herein described.

In witness whereof I hereunto set my hand and seal.

GEORGE W. SWAN. [L. s.]

Witnesses JOHN L. BOONE, O. M. RICHARDSON.

